There are a few video's on supportnet that may help. As for VX.1 we now support a full Evaluation Guide that steps the user through the design process including interactive routing. This Evaluation Guide is focused on a lot of the new features within VX.1 therefore it may not help much for using the 7.9.5 version of our software.
The evaluation guide for VX.1 Xpedition is located at: http://supportnet.mentor.com/eval-xpedition-engineer
Product Marketing Director